On October 17, a student went on a shooting rampage, detonated a bomb at the Kerch Polytechnic College in Crimea, and later committed suicide. Twenty-one people died because of the shooting and explosion at the Kerch technical college, including the attacker who committed suicide. Around 50 people were taken to local hospitals, with ten of them in intensive care units in grave condition. Three days of mourning have been declared in Crimea.